The hemorrhoid nucleus is not necessarily hard, because the nucleus of internal hemorrhoids is soft to the touch, which is the hemorrhoidal mucosa, a soft tissue. However, sometimes the nucleus of the hemorrhoid can become hard to the touch, such as when the internal hemorrhoid is aggravated, the nucleus of the hemorrhoid prolapses in the anus or gets stuck in the anus and does not retract back into the anus on its own, it is likely to become edematous, inflamed and necrotic. In addition to this condition, varicose hemorrhoids also appear soft, while inflammatory external hemorrhoids are of the hard variety. In summary, whether the nucleus of the hemorrhoid is hard or soft needs to be analyzed on a case-by-case basis. Once you have hemorrhoids and they appear to be hard, you need to pay attention and should treat them promptly.